Xbox owners got a bit of a nasty surprise thanks to Microsoft's sudden announcement today that the monthly cost of a Game Pass Ultimate subscription is getting a 50 percent increase. The new $30 monthly price, up from $20, is going to really sting for a lot of people, especially with no cheaper annual or quarterly options offered.Fortunately, the rough price hike isn't all that Microsoft talked about today - there are a lot of games being added to the service, particularly for the two most expensive plans. In case you aren't up to date, Game Pass is now split into three slightly revamped tiers: Essential, Premium and Ultimate, two of which are confusingly also names Sony uses for its cheapest and most expensive PS Plus offerings. You can read a full breakdown of each tier and what they cost here.More than 45 new games have joined the Ultimate library, with certain Ultimate games trickling down into the Premium and Essential tiers. If that sounds confusing, that's probably because it is, but the main headlines are that Hogwarts Legacy is now part of Game Pass Ultimate and Premium, while the priciest Ultimate lineup has ballooned in size thanks to the introduction of Ubisoft Classics+. This curated catalogue of Ubisoft's extensive back catalogue joins EA Play, which was already part of Ultimate, and is a pretty significant addition to the service. Especially if you like old-school Assassin's Creed.Here is the full list of games joining each Game Pass tier today.Ultimate